Journal
AMERICAN JOURNAL OF KIDNEY DISEASES
Volume 61, Issue 5, Pages 822-827Publisher
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1053/j.ajkd.2012.10.028
Keywords
Metabolic alkalosis; treatment; congestive heart failure
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Metabolic alkalosis, isolated or in combination with another abnormality, is the most common acid-base disorder in patients with congestive heart failure. In most cases, it is a result of diuretic therapy, which causes activation of the renin-angiotensin system, chloride depletion, increased distal sodium delivery, hypokalemia, and increased urine acidification, all of which contribute to bicarbonate retention. In addition, the disease state itself results in neurohormonal activation (renin-angiotensin system, sympathetic nervous system, and endothelin) that further amplifies the tendency toward alkalosis. Treatment of metabolic alkalosis is based on the elimination of generation and maintenance factors, chloride and potassium repletion, enhancement of renal bicarbonate excretion (such as acetazolamide), direct titration of the base excess (hydrochloric acid), or, if accompanied by kidney failure, low-bicarbonate dialysis. In congestive heart failure, appropriate management of circulatory failure and use of an aldosterone antagonist in the diuretic regimen are integral to treatment. Am J Kidney Dis. 61(5): 822-827. Published by Elsevier Inc. on behalf of the National Kidney Foundation, Inc. This is a US Government Work. There are no restrictions on its use.
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